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Marine Modeling in CSDMS: Gravity-Driven Transport and Sediment Feedback

Explore the integration of GRAVFLOW and SEDTRANS models in CSDMS for marine applications, focusing on sediment transport dynamics and feedback mechanisms. Prioritize development of new models and databases for enhanced marine and coastal modeling projects.

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Marine Modeling in CSDMS: Gravity-Driven Transport and Sediment Feedback

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  1. Marine Models in CSDMS Circ: 2DFLOWVEL (C), ROMS, POM, Symphonie Wave: WW3 Morph: Fanbuilder SedTrans: Sedtrans05 Sedim: GPM, Dionisos, SedPack, Simsafadim, Sedflux, Sedsim, SimClast GravFlow: Bing, Inflow, Sakura, Wsgfam, Gvg3dp Sub: Compact, LithFlex1, LithFlex2, Subside Source: Plume Misc: Bio, Diffusion Coastal: BarSim, CstASMITA, Integrated: Delft3D Carbonates: CarbGPM, FuzzyReef

  2. Marine Modeling Data Needs • Sea-surface temperature • Winds (speed, direction, wind stress) • Tides • Waves • River mouth discharge • Sediment characteristics of seafloor

  3. Gravity-driven transport in CSMDS Many approaches (DNS, 1D avg’d Chezy balance) CSDMS needs 2D (spatial), depth-avg’d models for turbidity currents, debris flows • Several suitable models exist but are not yet in CSMDS Failure conditions also have to be formulated in 2D • Lee’s GIS approach may be suitable, extends formulation currently in SedFlux

  4. Proof-of-concept ideas • River-ocean coupling in Arctic • Gully formation on continental slope, related to sediment failure and feedback with pore pressure • If models are capable of channel formation, how large would a basin have to be to have a channel run through it? • Couple debris flow and turbidity current models (hard to do) • Deformation of sea floor and feedbacks to deposition and stratigraphy • Compare geometric models and process models of basin sedimentation

  5. Priorities • Development of SedGrid to support a range of marine and coastal/terrestrial modeling projects • Addition of 2D, depth-averaged gravity flow models (turbidity currents and debris flows) to CSDMS; also 2D failure criteria • Create searchable model database • IRF and link SedFlux components with SedGrid

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